OK, I find that with the following batch file
--------- begin bug.mac ---------
linel:79;
linenum:87;
fpprec:131;
a:1/7.0B+0;
b:1234B-22;
ldisplay(a-b);
---------- end bug.mac ----------
then batch ("bug.mac"); => "Expression is too wide"
repeatably.
If this stuff is typed at the command prompt it doesn't happen
(output layout is slightly different so it doesn't tickle the bug).
For what it's worth,
Robert Dodier